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I. MOORE.

' DOOR SPRING.

(No Model.)

Pat ented Feb. 6,1883.

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UNTTED STATES IRA MOORE, OF NEW YORK, N. Y.,

ASSIGNOR TO THOS. 0. EACH, OF

SAME PLACE.

DOOR-SPRING.

SPECIFICATION forming part of Letters Patent Nb. 271,649, dated February6, 1883.

Application filed March 8, 1882. (No model.) i

To all whom it may concern I Be it known that I, IRA MOORE, of the city,county, and State of New York, have invented anew and usefulImprovementin Door-Springs, of which the following is a specification.

This invention relates toacoiled door-spring contrived to be located ina socket made in the edge of the door and connected to the jamh forclosing the door.

The invention consists of an-improved device by which the spring isattached to the door, and out of which the spring draws when the dooropens; and it also consists of improvements in the devices by which thespring is connected to the jamb, as hereinafter described, referencebeing made to the accompanying drawings, in which Figure l is a sideelevation of the spring and the parts to be attached to the door. Fig. 2is a top view of the same. Fig.3 represents face views of the door andthe jamb with the spring devices attached thereto, but not connectedtogether. Fig. at is a view similar to Fig. 2, with the spring connectedto thejamb. Fig. 5 is a vertical section through the jamb parallelwithits face,showing the method of connecting the spring thereto. Fig. 6 isan edge view of the jamh-plate. Fig. 7 is a horizontal section of thedoor and jamb, illustrating the Working of the spring device, thedoorbeing shown opened toaright angle, with the jambin full lines and turnedaround against the wall in dotted lines. Fig.8 is a side elevation of adoublespring for heavy doors.

A represents the door, B the jamb, and O the door-frame. At any suitableplace in the door, but preferably in the face of the middle cross-pieceor lock-rail thereof, I make a hole or socket, D, with a bit orotherwise, of suitable depth forthereception of acoiledcompression-spring of one or two members, E, long enough to have amplerange for the purposes of a door-spring without compressing it too muchwhen contracted, and insert such spring therein behind and bearingagainst the hub F of an attaching-plate, G, projecting into the socketand having the flaring mouth H at the front thereof. I form an opening,I, through the hub for the ribbon-spring J, which extends means, theouter end of said ribbon-spring being connected to thejanib, so that asthe door swings on its hinges eccentric-ally to the point where saidribbon-spring is connected to the jamb the spring E will be'compressed,and thus will have power to close the door when it is released afterbeing opened,

It will be seen that by reason of the flaring side to the opening H thespringJ has greater range for flexure, whereby the action is more easyand it is less subject to damage than it otherwise would be. The mouth His made to flare alike both ways, so that; the attachment is alikeuseful for doors hinged so as to swing both ways; also, to provide forthe opening of the door against the wall without binding the springJ onthe cornerof thejamb-plate T. I arrange the pivot or connecting-pin V ina position projected beyond the face of the jambplate, so as to clearthe corner of the latter, as shown by the dotted lines, Fig. 7. For soprojecting it I connect it to a bead, U, extending into a slot, M, ofthejamb-plate far enough to receive the connecting-pin N, insertedthrough a hole, 0, bored edgewise in the plate, the pin being detachablefor disconnecting the spring. Another hole, P, is represented in thejambplate, in which the pin may be inserted for keeping when the springis detached, and the pin may be connected to the door-frame by achain,\V, for safety; butIdo not limit myself to this method ofconnecting the spring for detachment, for a spring-catch may be lodgedin the jamb suitably for engaging it with a latch-lever or thumb-bitprojecting out thron gh jamb, I desire it to be understood that myinvention includes the reverse arrangement of placing the springinthejamb and connecting itto the door, if desired, the one being theequivalent of the other; and I propose for heavy doors to use thedouble-spring arrangement of Fig. 8, which is substantially the same asthe other, with the addition onlyof the extensions Q to hub F, centerrods, t, for the springs, and the elongated bar-washer K, together withthe duplicate coiled spring.

The ribbon-spring J may have a series of holes, X, for theconnecting-pin I, to adjust the washer from time to time, as the springmay shorten by compression or any other equivalent arrangement therefor.

What I claim, and desire to secure by Letters Patent, is-

1'. In a door-spring substantially as described, the attaching-plate G,constructed with the hub F, projecting into the socket of the door, andhaving the flaring mouth H, and an opening through said hub for thespring, substantially as described.

2. The spring J, attached to the door, substantially as described, andconnected by pivot V to the head U of the device that connects thespring with the jamb, which head projects outwardly from the face of thejamb, in combination with the door-plate G, having flaring month H andspring E, substantially as described.

IRA MOORE. Witnesses:

W. J. MORGAN, I BENJN. A. DARE.

